B. "Special mileage commercial tire" means a tire manufactured with an extra layer
of rubber between the cord body and original tread design, which extra layer is designed
for the purpose of recutting or regrooving, and which tire is specifically labelled
as a "special mileage commercial tire." [1993, c. 683, Pt. A, §2 (NEW); 1993, c. 683, Pt. B, §5 (AFF).]

[
1993, c. 683, Pt. A, §2 (NEW);
1993, c. 683, Pt. B, §5 (AFF)
.]

2.Safe tires required.
A motor vehicle may not be operated on a public way unless it is equipped with tires
in safe operating condition. A tire mounted on a motor vehicle is not considered
to be in safe operating condition unless it meets the visual and tread depth requirements
set forth in subsections 3 and 4 and the vehicle is in compliance with the frame height requirements provided in section
1920.

[
2013, c. 30, §1 (AMD)
.]

3.Visual requirements.
A tire is not in safe operating condition if that tire has:

A. A fabric break or a cut in excess of one inch in any direction as measured on the
outside of the tire and deep enough to reach the body cords; [1993, c. 683, Pt. A, §2 (NEW); 1993, c. 683, Pt. B, §5 (AFF).]

4.Tread depth.
A tire is not in safe operating condition if it is worn to the point where less
than 2/32 inch of tread design remains at all points at which gauge readings are required.
Tread depth must be measured as follows.

B. Readings must be taken in all major tread grooves and must include at least 2 points not closer than 15 inches. [2007, c. 348, §17 (AMD).]

C. Readings for a tire that has the tread design running across the tire or for a siped
tire must be taken at or near the center of the tire at 2 points of the circumference
not closer than 15 inches. [1993, c. 683, Pt. A, §2 (NEW); 1993, c. 683, Pt. B, §5 (AFF).]

[
2007, c. 348, §17 (AMD)
.]

5.Exemptions.
A farm vehicle used exclusively for agricultural purposes, including, but not limited
to, a self-propelled combine, self-propelled corn and hay harvesting machine or tractor
used exclusively for agricultural purposes, is exempt from this section.